<template>
  <div>
    <box t1="用户管理" t2="用户列表">
      <el-row :gutter="20">
        <el-col :span="8">
          <el-input placeholder="请输入内容" clearable v-model="queryInfo.query" @clear="getUserList">
            <el-button slot="append" icon="el-icon-search" @click="getUserList"></el-button>
          </el-input>
        </el-col>
        <el-col :span="4">
          <el-button type="primary" @click="dialogVisible=true">添加用户</el-button>
        </el-col>
      </el-row>
      <el-table :data="userList" border="" stripe>
        <el-table-column type="index" label="#"></el-table-column>
        <el-table-column prop="username" label="姓名"></el-table-column>
        <el-table-column prop="email" label="邮箱"></el-table-column>
        <el-table-column prop="mobile" label="电话"></el-table-column>
        <el-table-column prop="role_name" label="角色"></el-table-column>
        <el-table-column prop="mg_state" label="状态">
          <template slot-scope="scope">
            <el-switch v-model="scope.row.mg_state" @change="userStateChange(scope.row)"></el-switch>
          </template>
        </el-table-column>
        <el-table-column label="操作">
          <template slot-scope="scope">
            <el-button
              type="primary"
              icon="el-icon-edit"
              size="mini"
              @click="showEditDialog(scope.row.id)"
            ></el-button>
            <el-button
              type="danger"
              icon="el-icon-delete"
              size="mini"
              @click="removeUserById(scope.row.id)"
            ></el-button>
            <el-tooltip effect="dark" content="角色分配" placement="top" :enterable="false">
              <el-button
                type="warning"
                icon="el-icon-setting"
                size="mini"
                @click="allotRoles(scope.row)"
              ></el-button>
            </el-tooltip>
          </template>
        </el-table-column>
      </el-table>
      <el-pagination
        @size-change="handleSizeChange"
        @current-change="handleCurrentChange"
        :current-page="queryInfo.pagenum"
        :page-sizes="[1, 2, 5, 10]"
        :page-size=" queryInfo.pagesize"
        layout="total, sizes, prev, pager, next, jumper"
        :total="total"
      ></el-pagination>
    </box>
    <!-- 添加用户的对话框 -->
    <el-dialog title="添加用户" :visible.sync="dialogVisible" width="50%" @close="addFormClose">
      <el-form :model="addForm" :rules="addFormRules" ref="addFormRefs" label-width="70px">
        <el-form-item label="用户名" prop="username">
          <el-input v-model="addForm.username"></el-input>
        </el-form-item>
        <el-form-item label="密码" prop="password">
          <el-input v-model="addForm.password"></el-input>
        </el-form-item>
        <el-form-item label="邮箱" prop="email">
          <el-input v-model="addForm.email"></el-input>
        </el-form-item>
        <el-form-item label="手机" prop="mobile">
          <el-input v-model="addForm.mobile"></el-input>
        </el-form-item>
      </el-form>
      <span slot="footer" class="dialog-footer">
        <el-button @click="dialogVisible = false">取 消</el-button>
        <el-button type="primary" @click="addUsers">确 定</el-button>
      </span>
    </el-dialog>
    <!-- 修改用户的对话框 -->
    <el-dialog
      title="修改用户"
      :visible.sync="editDialogVisible"
      :close-on-click-modal="false"
      width="50%"
    >
      <el-form
        :model="editForm"
        :rules="addFormRules"
        ref="editFormRefs"
        label-width="70px"
        @close="resetForm"
      >
        <el-form-item label="用户名">
          <el-input v-model="editForm.username" disabled></el-input>
        </el-form-item>
        <el-form-item label="邮箱" prop="email">
          <el-input v-model="editForm.email"></el-input>
        </el-form-item>
        <el-form-item label="手机" prop="mobile">
          <el-input v-model="editForm.mobile"></el-input>
        </el-form-item>
      </el-form>
      <span slot="footer" class="dialog-footer">
        <el-button @click="editDialogVisible = false">取 消</el-button>
        <el-button type="primary" @click="editUserForm">确 定</el-button>
      </span>
    </el-dialog>
    <!-- 分配角色弹框 -->
    <el-dialog title="分配角色" :visible.sync="setRolesDialogVisible" width="50%">
      <div>
        <p>当前的用户：{{userInfo.username}}</p>
        <p>当前的角色：{{userInfo.role_name}}</p>
        <p>分配新角色：
          <el-select v-model="selectedRoleId" placeholder="请选择">
            <el-option
              v-for="item in roleList"
              :key="item.id"
              :label="item.roleName"
              :value="item.id"
            ></el-option>
          </el-select>
        </p>
      </div>
      <span slot="footer" class="dialog-footer">
        <el-button @click="setRolesDialogVisible = false">取 消</el-button>
        <el-button type="primary" @click="saveRoleInfo">确 定</el-button>
      </span>
    </el-dialog>
  </div>
</template>

<script>
export default {
  data() {
    // 验证邮箱的规则
    var checkEmail = (rule, value, cb) => {
      // 验证邮箱的正则表达式
      const regEmail = /^([a-zA-Z0-9_-])+@([a-zA-Z0-9_-])+(\.[a-zA-Z0-9_-])+/;

      if (regEmail.test(value)) {
        // 合法的邮箱
        return cb();
      }

      cb(new Error("请输入合法的邮箱"));
    };

    // 验证手机号的规则
    var checkMobile = (rule, value, cb) => {
      // 验证手机号的正则表达式
      const regMobile = /^(0|86|17951)?(13[0-9]|15[012356789]|17[678]|18[0-9]|14[57])[0-9]{8}$/;

      if (regMobile.test(value)) {
        return cb();
      }

      cb(new Error("请输入合法的手机号"));
    };
    return {
      queryInfo: {
        query: "",
        // 当前的页数
        pagenum: 1,
        // 当前每页显示多少条数据
        pagesize: 2
      },
      userList: [],
      total: 0,
      dialogVisible: false,
      addForm: {
        username: "",
        password: "",
        email: "",
        mobile: ""
      },
      addFormRules: {
        username: [
          { required: true, message: "请输入用户名", trigger: "blur" },
          {
            min: 3,
            max: 10,
            message: "用户名的长度在3~10个字符之间",
            trigger: "blur"
          }
        ],
        password: [
          { required: true, message: "请输入密码", trigger: "blur" },
          {
            min: 6,
            max: 15,
            message: "用户名的长度在6~15个字符之间",
            trigger: "blur"
          }
        ],
        email: [
          { required: true, message: "请输入邮箱", trigger: "blur" },
          { validator: checkEmail, trigger: "blur" }
        ],
        mobile: [
          { required: true, message: "请输入手机号", trigger: "blur" },
          { validator: checkMobile, trigger: "blur" }
        ]
      },
      editDialogVisible: false,
      editForm: {},
      setRolesDialogVisible: false,
      roleList: [],
      userInfo: {},
      selectedRoleId: ""
    };
  },
  created() {
    // 生命周期内调用
    this.getUserList();
  },
  methods: {
    async getUserList() {
      const res = await this.$http.get("users", {
        params: this.queryInfo
      });
      // 获取数据总数
      this.total = res.data.total;
      // 获取所有联系人
      this.userList = res.data.users;
    },
    handleSizeChange(newSize) {
      // 选择页面展示多少条数据时触发pagesize
      this.queryInfo.pagesize = newSize;
      this.getUserList();
    },
    handleCurrentChange(currentSize) {
      // 点击页码切换当前页触发，接受当前在哪一页pagenum
      this.queryInfo.pagenum = currentSize;
      this.getUserList();
    },
    async userStateChange(userInfo) {
      const res = await this.$http.put(
        `users/${userInfo.id}/state/${userInfo.mg_state}`
      );
      if (res.meta.status !== 200) {
        userInfo.mg_state = !userInfo.mg_state;
        return this.$message.error("修改用户状态失败");
      } else {
        return this.$message.success("修改用户状态成功");
      }
    },
    // 监听用户对话框关闭时间
    addFormClose() {
      this.$refs.addFormRefs.resetFields();
    },
    // 点击按钮添加新用户
    addUsers() {
      this.$refs.addFormRefs.validate(async valid => {
        if (!valid) return;
        const res = await this.$http.post("users", this.addForm);
        if (res.meta.status !== 201) return this.$message.error(res.meta.msg);
        this.$message.success("创建用户成功");
        this.dialogVisible = false;
        this.getUserList();
      });
    },
    // 点击修改按钮弹出
    async showEditDialog(id) {
      const res = await this.$http.get("users/" + id);
      if (res.meta.status !== 200)
        return this.$message.error("查询用户数据失败");
      this.editForm = res.data;
      this.editDialogVisible = true;
    },
    editUserForm() {
      this.$refs.editFormRefs.validate(async valid => {
        if (!valid) return;
        const id = this.editForm.id;
        const res = await this.$http.put("users/" + id, this.editForm);
        if (res.meta.status !== 200)
          return this.$message.error("用户数据修改失败");
        this.$message.success("用户数据修改成功");
        this.editDialogVisible = false;
        this.getUserList();
      });
    },
    // 重置表单
    resetForm() {
      this.$refs.editFormRefs.resetFields();
    },
    async removeUserById(id) {
      const confirmResult = await this.$confirm(
        "此操作将永久删除该文件, 是否继续?",
        "提示",
        {
          confirmButtonText: "确定",
          cancelButtonText: "取消",
          type: "warning"
        }
        // 点击取消时，通过catch获取取消信息
      ).catch(err => err);

      if (confirmResult == "cancel") return this.$message.info("删除取消");
      if (confirmResult == "confirm") {
        const res = await this.$http.delete("users/" + id);
        if (res.meta.status != 200)
          return this.$message.error("用户数据删除失败");
        this.$message.success("用户数据删除成功");
        this.getUserList();
      }
    },
    allotRoles(role) {
      this.setRolesDialogVisible = true;
      this.userInfo = role;
      this.getRoleList();
    },
    async getRoleList() {
      const res = await this.$http.get("roles");
      if (res.meta.status !== 200)
        return this.$message.error("获取角色数据失败");
      this.roleList = res.data;
    },
    async saveRoleInfo() {
      //  判断用户是否选择了角色
      if (!this.selectedRoleId) return this.$message.info("请选择角色");
      const res = await this.$http.put(`users/${this.userInfo.id}/role`, {
        rid: this.selectedRoleId
      });

      if (res.meta.status != 200) return this.$message.error("分配角色失败");
      this.setRolesDialogVisible = false;
      this.getUserList();
    }
  }
};
</script>

<style lang="less" scoped>
</style>